import itertools

data = [1, 2, 3, 4, 5]

iter1, iter2, iter3 = itertools.tee(data, 3)

print(list(iter1))  # 输出: [1, 2, 3, 4, 5]
print(list(iter2))  # 输出: [1, 2, 3, 4, 5]
print(list(iter3))  # 输出: [1, 2, 3, 4, 5]